We run several deployment sites around the state for this very reason, and Lansweeper offers a few different methods of segregating deployment sites. We are simply using full path in the package steps, and we name each package accordingly to indicate where it should be used- is simple and works.
Instead of the default: {PackageShare}\Installers\
You can use something like: \\YOURSERVERNAME\YourLansweeperRepository\Installers\